<template>
  <div class="app-container">
    <el-card class="operate-container" shadow="never">
      <el-form :inline="true">
        <el-form-item label="输入搜索：">
          <el-input
            style="width: 203px"
            v-model="searchObj.name"
            placeholder="关键字"
          ></el-input>
        </el-form-item>

        <el-button type="primary" icon="el-icon-search" @click="fetchData()"
          >查询</el-button
        >
        <el-button type="default" @click="resetData()">清空</el-button>
      </el-form>
    </el-card>

    <!-- 工具条 -->
    <el-card class="operate-container" shadow="never">
      <i class="el-icon-tickets" style="margin-top: 5px"></i>
      <span style="margin-top: 5px">数据列表</span>
      <el-button class="btn-add" size="mini" @click="add()">添加</el-button>
      <el-button
        class="btn-add"
        size="mini"
        @click="removeRows()"
        style="margin: 0 10px"
        >批量删除</el-button
      >
    </el-card>

    <!-- banner列表 -->
    <el-table
      v-loading="listLoading"
      :data="list"
      stripe
      border
      style="width: 100%; margin-top: 10px"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" />

      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="name" label="组名" />
      <el-table-column prop="sort" label="排序" />
      <el-table-column prop="remark" label="备注" />
      <el-table-column prop="createTime" label="创建时间" />
      <el-table-column prop="updateTime" label="更新时间" />

      <el-table-column label="设置" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/product/attr/list/' + scope.row.id">
            <el-button size="mini" icon="el-icon-edit">平台属性列表</el-button>
          </router-link>
        </template>
      </el-table-column>

      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/product/attrGroup/edit/' + scope.row.id">
            <el-button type="text" size="mini">修改</el-button>
          </router-link>
          <el-button
            type="text"
            size="mini"
            @click="removeDataById(scope.row.id)"
            >删除</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件 -->
    <el-pagination
      :current-page="page"
      :total="total"
      :page-size="limit"
      :page-sizes="[5, 10, 20, 30, 40, 50, 100]"
      style="padding: 30px 0; text-align: center"
      layout="sizes, prev, pager, next, jumper, ->, total, slot"
      @current-change="fetchData"
      @size-change="changeSize"
    />
  </div>
</template>

<script>
import api from "@/api/product/attrGroup";

export default {
  data() {
    return {
      listLoading: true, // 数据是否正在加载
      list: null, // banner列表
      total: 0, // 数据库中的总记录数
      page: 1, // 默认页码
      limit: 10, // 每页记录数
      searchObj: {}, // 查询表单对象
      multipleSelection: [], // 批量选择中选择的记录列表
    };
  },

  // 生命周期函数：内存准备完毕，页面尚未渲染
  created() {
    console.log("list created......");
    this.fetchData();
  },

  // 生命周期函数：内存准备完毕，页面渲染成功
  mounted() {
    console.log("list mounted......");
  },

  methods: {
    // 当页码发生改变的时候
    changeSize(size) {
      console.log(size);
      this.limit = size;
      this.fetchData(1);
    },

    add() {
      this.$router.push({ path: "/product/attrGroup/add" });
    },

    // 加载banner列表数据
    fetchData(page = 1) {
      console.log("翻页。。。" + page);
      // 异步获取远程数据（ajax）
      this.page = page;

      api
        .getPageList(this.page, this.limit, this.searchObj)
        .then((response) => {
          this.list = response.data.records;
          this.total = response.data.total;

          // 数据加载并绑定成功
          this.listLoading = false;
        });
    },

    // 重置查询表单
    resetData() {
      console.log("重置查询表单");
      this.searchObj = {};
      this.fetchData();
    },

    // 根据id删除数据
    removeDataById(id) {
      //
      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // promise
          // 点击确定，远程调用ajax
          return api.removeById(id);
        })
        .then((response) => {
          this.fetchData(this.page);
          if (response.code) {
            this.$message({
              type: "success",
              message: "删除成功!",
            });
          }
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },

    // 当表格复选框选项发生变化的时候触发
    handleSelectionChange(selection) {
      console.log("handleSelectionChange......");
      console.log(selection);
      this.multipleSelection = selection;
    },

    // 批量删除
    removeRows() {
      console.log("removeRows......");

      if (this.multipleSelection.length === 0) {
        this.$message({
          type: "warning",
          message: "请选择要删除的记录!",
        });
        return;
      }

      this.$confirm("此操作将永久删除该记录, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          // promise
          // 点击确定，远程调用ajax
          // 遍历selection，将id取出放入id列表
          var idList = [];
          this.multipleSelection.forEach((item) => {
            idList.push(item.id);
            // console.log(idList)
          });
          // 调用api
          return api.removeRows(idList);
        })
        .then((response) => {
          this.fetchData(this.page);
          if (response.code) {
            this.$message({
              type: "success",
              message: "删除成功!",
            });
          }
        })
        .catch(() => {
          this.$message({
            type: "info",
            message: "已取消删除",
          });
        });
    },
  },
};
</script>
<style rel="stylesheet/scss" lang="scss" scoped></style>
